PS Audio DirectStream DAC Mk 2

TECHNOLOGY

OVERVIEW

Class A+ Stereophile rated DirectStream DAC converts any digital input format from CDs, servers, and streamers, into a pure DSD format and outputs near-perfect analog directly to your power amplifier or preamplifier. Whatever the format, sample rate, or the medium, DirectStream provides a pure output that fulfills the promise of high-resolution analog performance from digital sources. DirectStream is the work of digital audio genius, Ted Smith. Unlike conventional DACs that rely upon off the shelf DAC chips, DirectStream is hand written onto a FPGA (Field Programmable Gate Array). This allows far more precise and accurate processing of the digital signal, resulting in significantly better sound quality and upgradeability in the field. Every six months or so, Ted Smith’s continual research into digital audio reproduction nets another breakthrough in performance. DirectStream DAC owners are given it free in the form of a downloadable upgrade. In this way, DirectStream owners can be assured that their unit will continue to improve over time, and never become obsolete. Hear whats been missing in your music for all these years. If you know the sound of music and instruments, and want to hear whats been missing on your discs, then this DAC is right for you.

DSD CONVERSION

Converting the ones and zeros of digital audio into music PS Audio cannot distinguish between live or recorded is an art. Most of todays sophisticated DACs are IC based instruments using off-the-shelf-chips that rely upon Multi-bit Sigma-Delta functions to process the incoming digital audio. While these are relatively simple to design and produce, they rarely give the best sonic results. DirectStream takes a different approach by first converting all digital audio signals into a purer form of digital audio known as DSD. DSD is a far more analog-like encoding and decoding process than the classic CD based PCM. In fact, most modern A/D converters used to make recordings are DSD based already. DirectStream takes both PCM and DSD, upsamples the data and converts to single-bit DSD and then outputs pure music regardless of input format for the data. The results of this design can be heard in increased musical information presented to the listener at every opportunity. When you listen to DirectStream you never are accosted by added bright, hard glare in the music as happens with many active designs. Instead, clean, pure music flows from the DirectStream directly to your preamplifier or power amplifier.

OUTPUT AND VOLUME

Most modern DACs use some form of active tube or solid state output stage to amplify, filter and drive the DAC’s output. DirectStream takes a different approach: passive. In one of the simplest, elegant and musically correct executions of an output stage, high-speed class A video amplifiers are used as the final switch feeding a high-performance passive audio output transformer. The transformer is specially designed to act as both the galvanic isolation between the DAC and the outside world as well as the primary low pass filter required to present a perfect, low distortion, low noise output signal that is fed directly into the DirectStream’s zero-loss volume control. Designer Smith perfected a 100% bit-perfect volume and balance control thats built into DirectStream, enabling users to control the output level when feeding directly into a power amplifier or preamplifier. The ability to eliminate the preamplifier in the system without any resolution loss is a major benefit to DirectStreams outstanding musical performance. Imagine going to a recording studio and listening to a master tape of any recording made. This is the experience DirectStream provides its owners who enjoy a renewed sense of enjoyment and discovery when listening to everything in their library: CDs, downloads, DSD.

FEATURES

100% Dsd Based D-A Converter
Upgradable Via Software Releases
Volume, Balance Control Built In
Upsamples Pcm And Dsd To 20X Dsd Rate
Dxd Support
Passive Transformer Coupled Output
Improves Imaging + Soundstage
Direct Signal Pass With 1X Master Clock
Handwritten Filters, Processors, Samplers
Immune To Outside Source Jitter Problems
Increased Digital Headroom
No Off-The-Shelf Ic-Dac Chips Used
Uncovers Details Usually Masked By Pcm Processors
7X Digital Inputs
Mqa + Tidal Ready With Optional Bridge Ii
Fully Balanced From Input To Output
Color Touch Screen